Machine for making flexible waterproof roofing



"s. H. GOLDBERG.

MACHINE FOR MAKlNG FLEXIBLE WATERPROOF ROOFING.

APPLICATION FILED MAY 23, 1914.

1,392,323; 7 Patented Oct. 4, 1921.

4 SHEETSSHEET 1.

cidd, 00ml; Q w 1/ 9%;

S. H. GOLDBERG.

MACHINE FOR MAKING FLEXIBLE WATERPROOF ROOFING.

APPLICATlON FILED MAY 23, I914- Patented Oct. 4, 1921.

4 SHEETSSHEET 2.

S. H. GOLDBERG. MACHINE FOR MAKING FLEXIBLE WATERPROOF ROOFING.

APPLICATION FILED MAY 23, I914.

's, H. GOLDBERG. MACHINE FOR MAKINGFLEXIBLE WATERPROOF ROOFING.

APPLICATION FILED MAY 23, I914.

4" ms on w d. )%4 m a UNITED STATES PATENT OFFICE.

SOLOMON H. GOLDBERG, OF CHICAGO, ILLINOIS, ASSIGNOR T0 CHARLES S. BIRD, OF

WALPOLE, MASSACHUSETTS.

Specification of Letters Patent.

Patented Oct. 4, 1921.

Application filed May 23, 1914. Serial No. 840,403.

To all whom it may concern Be it known that I, SOLOMON H. GOLD- BERG, a citizen of the United States, residing in the city of Chicago, county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Making Flexible Waterproof Roofing, of which the following is a specification.

My invention relates to a machine for manufacturing flexible waterproof roofing and more particularly to mechanism adapted to produce a roofing having a surface of predetermined color or design. Among the salient objects of the invention are to provide a machine of the type mentioned adapted to turn out a finished product by continuous operation; to permit of a roll of paper or other flexible base being positioned at one end and fed through the machine so that the finished product is simultaneously wound as the raw base is unwound; to allow rolls of the finished product of any predetermined size being wound and severed without stopping the operation of the machine; to provide a continuous surface for coloring or printing the face of the roofing; to insure a uniform coloring or printing; to permit of various designs being employed with a single master printing roll; to maintain a high standard of uniformity in the various layers of the product turned out by the machine; and in general to produce a simple and efficient construction which will rapidly and at mini mum expense produce a colored or designed roofing of uniformly high quality. The invention further resides in various combinations of parts and features of construction hereinafter disclosed.

In the drawings Figure 1 is a side elevation of the mechanism for coloring or producing designs upon the roofing; Fig. 2 is an end elevation thereof; Fig. 3 is a crosssection on the line 33 of Fig. 1; Fig. 4 is a plan view of the finished product of the machine; Figs. 5 and 5 are diagrammatic views partly in section showing the entire sequence of operations of the machine.

Referring first to the general arrangements as illustrated diagrammatically by Figs. 5 and 5 Ihave indicated the floor of the building on which the machine is positioned by the reference character 1. A roll 2 of paper or other foundation is suitably mounted to be unwound about its axis 2*,

the foundation material extending forward over the bearing roller 3 into the tank 4. This tank contains an asphaltic or other desired water-proofing substance with which the flexible foundation is impregnated. In order to insure sufficient entrance of the solution into the flexible base I preferably employ a series of rolls 5, 6, 7 and 8, below the upper level of the solution the flexible foundation passing successively over these rolls and being held thereby immersed in the solution. In the particular construction shown the flexible foundation leaves the tank 1 at the opposite end from which it entered, and as it passes beyond the plane of the tank is drawn between ringer rolls 9 and 10 which serve to prevent an excessive amount of the fluid being carried on the surface of the flexible foundation when the latter passes on to the next step.

The flexible foundation which has been saturated with the water-proofing substance as previously mentioned is now passed to the coating mechanism 11, but intermediate the saturating tank and the coating mechanism I preferably employ a plurality of drying rolls 12, 13, 1 1 and 15, around which the saturated foundation is passed. When it reaches the binder applying mechanism 11 a coating of bitumen or other suitable binder is applied to the upper surface of the foundation as shown at 16. This coating is pressed down into the binder by pressure rolls 17 and 18, which also serve as ringer rolls to prevent an excessively thick coating of the binder being applied. The thickness of the binder can be regulated by variably adjusting the space between the said rolls 17 and 18, this being accomplished as shown in Fig. 5 by set screw 19 adapted to raise and lower the axis of the roll 18.

The next step in the formation of the product is the application of a granular substance to the facing of the foundation which has just been coated with the binder. While various mechanisms may be employed for furnishing a supply of the granular facing to the binder, I preferably use a roll such as 20, having a series of recessed portions '21 separated by teeth 22 which in their upper position register with the hopper 23 suspended from the platform 24.

This insures a substantially uniform amount of the granular fiwing being applied at all times to the binder. In this stage of the manufacture, the product is alternately passed below and above a series of rolls 25, 26, 27, 28, 29, 30, 31 and 32 to the printlng mechanism 33.

In order to insure that the binder 16 will be covered to the desired degree with granular facing 34, there is preferably an excess of such facing discharged from the hopper 23 onto the flexible base. The excess of granular facing is not, however, lost, but is conserved in a suitable trough 35 from which it can be returned to the hopper 23. I preferably locate this trough directly below the roll 26 which is the first roll where the coated facing of roofing turns downward. In order to pass the roofing over the upper surface of the printing roll 36 I preferably pass it from the roll 29 downward through the aperture 37 in the floor 1; thence from the roll 30 along the underside of the floor beneath the printing roll mechanism to the roll 31, from which it emerges to a point above the floor through the aperture 38. From here it passes around a roll 32 to the printing mechanism, by which its surface is suitably colored or printed in' designs in themanner more full hereinafter described in detail. After the completion of the coloring or designing of surface, the completed roofing is passed around the roll 39 to the drying roll 40, it being held against this drying roll by the adjacent rollers 41 and 42.

The completed. product is then passed through the bearing rollers 43 and 44 to the winding reel 45 where it is wound up in rolls of standard or any other desired length. Whenever the predetermined length of roll is fed to the winding reel 45, the roofing is severed by suitably cutting the same across the surface 46. I preferably arrange the driving mechanism so that the finished product is wound slightly faster than it would be normally fed around the roll 40. This is for the purpose of taking up the slack which may accumulate between the rollers 40 and 43 while one roll of the 'finished' product is 7 being removed and another started. The slack in the roofing between the rolls '40 and 43 as indicated at 4'7, accumulates while the roll of the finished product is being removed, and Ipreferably provide space for accommodating the slack an open space where the slack would accumulate. Referringnowin detail to the printing mechanism as shown in Figs. 1, 2 and 3, it

will be noticed that the printing roll 36 is mounted on a frame member comprising'the standards 49 and 50 mounted on the base 51. This base 51 is provided with a tank 52 adapted to contain a quantity of liquid color ng matter 53. In place of having the printing roll 36 pass directly through the coloring matter 53, I preferably employ a series of intermediate rolls such as 54, 55, 56 and 57, positioned so that the roll 54 tends into the tank 52 and passes directly through the liquid 53. The roll 55 which engaged the lower portion of the printing roll 36 is however spaced from the roll 54, but both of the rolls 54 and 55 are engaged by the intermediate rolls 56 and 57. Power for driving these various rolls is furnished by means of a driven belt wheel 58 fixedly secured to the shaft 59. The rotary movement of the shaft 59 is conveyed to the shaft 60 upon which is mounted the roller 54, this motion being transmitted through a link belt 61 or other suitable driving mechanism. From the shaft 60 the rotary motion is transmitted to the shafts 62, 63 and 64 by the link belt 65. From one of these last mentioned shafts, such as the shaft 63, rotary motion is transmitted to the printing roll 36 by a link belt 66. By employing gears of the desired size it is obvious that the speed of these variou's shafts can be proportioned as desired. In order to take up any slack in the drive chain or to otherwise regulate the transmission of power from one of the shafts to the other, I preferably employ adjusting mechanism such as the screw 67 and 68 shown in Fig. 2. I also provide a screw or other adjusting mechanism 69 whereby the pressure roll 70 may be adjusted vertically to vary the distance between the contacting surfaces of the rolls 70 and 36. This vertical adjustment of the roll 70 not only permits of the use of the roll with roofing of variable thicknesses but also provides a means whereby the granular faclng at the time of its contact with the roll 36 can be forced a greater or less distance into the binder. A similar adjusting screw 71 is employed for regulating the degree of pressure between the printing roll 36 and the roller 55, this last mentioned roller being preferably constructed of rubber or like material.

It will be noticed from the description that the printing liquid does not pass directly from the tank 52 to the printing surface of the roll 36, but is gradually fed upward through a series of contacting rollers. Thus a coating of a coloring fluid would adhere to the roller 54, and as this roller revolves, the portion of the surface which has become coated with the fluid, registers with the surface of the rolls 56 and 57 which in turn bear-against the lower surface of the roller 55 and is carried by the surface of this roller to the printing roll 36. This not only insures against an excessive amount of the printing fluid being applied to the face of the roofing but also provides a means whereby a constantly uniform amount of the printing fluid will be available at all tim s upon the first roller. This construction is also economical in that any excess of the coloring liquid will be returned to the tank 52 by gravity before it reaches the main printing roll.

Taking up now the construction of the printing roll 36, it will be noticed that the printing surface thereof is formed of a plurality of segmental plates 7 2 cooperating to make up the contour of the printing surface of this master roll 36. These plates are secured to the permanent surface of the roll by any suitable means such as the screw 73. The portion of the printing roll to which the segmental plates are attached is preferably formed of a plurality of wooden members 76 bolted to an inner rim 77 by means of bolts 78, the heads of the bolts being countersunk as shown at 79. The printing roll as thus constructed not only has great rigidity but is one which is not liable to have its printing surface become uneven by unequal expansion as might be the case if a solid member were employed throughout. Moreover the parts may be readily removed for repairs or substitutions, and in the case of the segmental plates 72 this removable feature is highly important in that various designs may be employed with a single main center, and the substitution can be made without dismantling any other part of the printing mechanism. In the particular form shown the segmental plates 72 are arranged with their adjacent edges 74 and 74 spaced a slight distance apart, thus providing an in termediate portion 75 which is substantially below the plane of the outer surface of the roll. In this manner the printing surface will comprise a plurality of surfaces of predetermined configuration spaced by portions which will not contact with the roller 55. The result of this arrangement will be that in the finished product there will appear alternate printed and unprinted portions as indicated in Fig. 4. An unprinted selvage portion 80 is left at one side of the finished products, and the designs are so arranged across the surface of the roller that when the opposite edge 81 is placed to cover the selvage portion it will contain a design 82 adapted to be complementary to the design 83 to produce the complete outline 84. In use the product of this machine can be placed in layers and a plurality of such layers will give the appearance of a continuous sheet of uniform designs.

It will be apparent from the above description that the entire operation of saturating coating, granulating, printing, drying and re-rolling the finished product, can be performed as a continuous operation, and that the application of coloring matter or designs is accomplished at a minimum expense and with practically no additional time required than that to produce a granular faced roofing which lacks the artistic value of the product of my improved machine. While I have shown and described a particular embodiment of my invention wherein the application of the coloring or designs is made as a step in the manufacture of the roofing from the raw base, it is of course not limited to such use and might be employed with a roofing to which the binder and granular facing had previously been applied. It is also obvious that various changes in construction, and rearrangement and apportioning of parts can be made without departing from the scope of my invention.

I claim:

In a machine for making flexible prepared roofing, the combination with means for unwinding and feeding a roll of flexible backing through a saturating tank, presser rolls through which the saturated backing sheet passes, means for applying granular facing to the adhesive face of the sheet, and means for applying a printed design on the granular facing, comprising a printer roll, a pressure roll cooperating therewith, a plurality of rolls for feeding regulated quantities of liquid to the printer roll and a liquid supply tank in which the feedin rolls ride.

SOLOMON GOLDBERG.

Witnesses:

F. L. BELKNAP, JoYcE M. Low. 

